Clutch.



J. H. MOSS, DECD.

c. s. MOSS, ADMINISTRATOR.

v CLUTCH.

APPLICATION FILED MAR- 20, 1913.

Patented Jan. 11, 1916.

2 SHEETSSHEET 1.

31 1% I i, E

WITNESSES 5313 M My. 4 m. M W

I v y Allormy J. H. MOSS, DECD.

c. B. Moss, ADMlNlSTRATOR.

CLUTCH.

APPLICATION FILED'MAR. 20, 1913 Patented Jan. 11, 1916.

2 SHEETSSHEET 2.

Hlilllllmni mm iiniinn eihrn nrnnroh JOHN H. MOSS DEG-EASED, BY CLARENCE/B. mossnnmrmsrneron, OF GLEN RIDGE, NEW'J'ERSEY:

1,167,590; Spifidati'o'ii of Letters' Patent.

A iiehtidnfilea march zo, 1913; serihi Nb. 755 798."

To all whom it mag/to'ncem I beveled ratchet ea1n, whiclwconsists of a Be it kno w'n that l'; CLARENCE B. Mosfsfa "beveledeamsurface 9 and a tooth 27 cltlzen of the United States, -'residing-at Patented J'hh. 11, 1916f The -'sleeve 1 is provided-with screw- Glen Ridgeg-" 'county 'of Essex and state of -threads -8l,-witlrwhich the serew threads New J ersey; adn'iinistrato'r 0f the-estate of 30 of a collar 10 engageiol"*the purpose JOHN H. Moss,' deceased, late'a citizen "of of -connect1n'g the collar to the'sleev'eand the United Statese do hereby make application for cer-tein new and use'ful Improve *nal movement or adjustment on the-sleeve.

ments in Clutches;invented by the" sai'd A nut ll, is screwedupon thes'leeve for locki-ngthe collarhgainst rearward move JOHN H.'l\ [oss, oi' which the following is a specification. inent-after it has been properly positioned;

perinitti ng ofthe collar having longitudi-" This invention relates to an improvement T e collar 10 is provided on its inner face in clutches especially applicable to dunib' with a beveled ratchet -ean1,--whiclr consists- =end of which is connected to ca1-l8,-and the rope, which is cennected to the ear,-=p'asses, p

:other end is connected to a' counter weight may be stoppedwrt any point and-prevent the elevator car from 1nov1-ng-upondown' 1n the well;

:(not shown). 'The-counter weight is pref erably "heavier-thanthe 'car-13,; and the- The invention consists of eertain novel 1'0pew12 pa se e e 2110111 3 15 e eha sfeatures of constructioh and combination" ing'over the pull y "W M1 1 1 1161 of parts which will be hereinafter fully-de from the pulley 'wheelover pulley 16; The

scribed and pointed out in the elaimM rope then extends to the {counterweight.-' In the "accompanying=drawings;' Figure=1 Sh B 18 P 'OY Q W tll' a large setis a view in front elevation of -a dun-1b p ey which 1 3 i111 H S P v waiter or elevaton to which-the i'mprove p l i g 611913119; 2111s ments are li d; vFi 2 i d 1 wsupported by the supports 5A., and mounted tion; Fig. 3 is aview in side elevation; Fig.-n-' P the rod is pa IQAZvWhiCh 131ml 3 4 i a id d a f thwyatchef he l; .adaptedto engage the teeth 23 efthe ratchetand pawl; Fi 54s asideyiewoi the ulm to p t latter r e back ley showing the fritztionplatesor blocks W id" Q mfi h 5 1 1 i g m fi Fig. 6 is a-t1'ansv'*ersesection through-xthe Wvhenit 1 d s ed a u he: clutching mechanism; Fige. 7 *and 8 are peI?- to y i 'ed' P l the spective' views ef the clutch-*facesof 'the b 7 the Pi i I along thepulley and c lla rod 21, and brought into engagement with represents Support, and n teeth 23 of the ratchet wheel.-- the shaft, whichis IIlOLhIrtGCbHPOIhtllG sup In OM61 0 Prevent h 'll r m port at the topof the well; A sleeve, 1, is g the c e th 111 he t p keyed to the shaifflbykey and is further w k ng a e kmg 1101581311 held against horizontal niovernent-byscrew- @9118 P which is. integral with the 3, which passes tln'ough-the-sleeve and en- 'P Q 1 Of "which 9 '1 1 f iilnfl gages the shaft' B. A. diski; is integrally es n o r t nt m e r formed on the-sleeve,- and a'ratc'hetwheelg 5 0 d o l T -1 a p d to which is loosely mounted en-thesleeve',-1s b g i k, pjloduceisufiicient' adapted to be held-in engagementwith the r on o lnsure h g o e'pe 2:

A coil spring 25 on the rod 21 1s held 1n placeby colln26 and thespring keeps the disk by friction 'bloeksfi of wood or other suitable material,-n1euntecl on one sideof I the ratchet- -wheel." A clutch'pull'eyQ-F C shoe or. arm con y g n i o is loosely mounted on-tliesleeve '1 and in h Sl vllenever the disk 4-1 fi fil one face thereoli'fric'tion blocks 7 of wood -to the right, the arm 24 raises pawl 22fout oi or other suitable-material,-are=l0cated,='which-engagement with ratchet teeth23, but when are adapted to engagewone {of the ;sicles of ;--the disk-4c 1s revolved 1n the opposite GlllGC- the ratchet wheel '5. The hub; 8 of the tion,-the-arm Zilthrows the pawl 22 into-en pulley *C is provided at this "end-With n gagement with-the ratcl1et teeth-23 After-- the pulley C and ratchet wheel have been loosely mounted upon the sleeve 1, so that the friction blocks 6 of the ratchet wheel are brought into engagement with disk 4;, and frictional blocks 7 of the pulley are in engagement with ratchet wheel 5, the collar 10 is then screwed on the sleeve 1, so that the cam face of the collar and cam face 9 of the pulley hub are together and the teeth 27 and 28 are adjusted a slight distance apart. The operativencss of the device depends upon the proper adjustment of thecam collar 10 with respect to the hub 8 of the pulley. Disk l limits the lateral movement of the pulley C on the sleeve in the direction toward the disk, while the collar 10 is held against rearward movement by the nut 11, and the collar limits the lateral movement of the pulley C in the direction of the collar. The tooth 28 of the collar 10 limits the independent rotation of the pulley C in its direction, and the beveled cam face 29 of collar 10 limits the independent rotation of the pulley C in the opposite direction.

The loosely mounted ratchet wheel 5, in conjunction with pawl 22, makes possible the lowering of the car and also the sustaining of the load at any desired point for the following reasons: When the car is loaded, it tends to rotate the pulley C independently to the left, and the cam surface 9, rotating against the cam face 29, produces a lateral movement of the pulley C toward the ratchet wheel 5, which binds the ratchet wheel against disk a. Now, when the shaft is revolved to the left, it rotates everything on the shaft with it, except the ratchet wheel 5, which is held against such revolution by the pawl 22, and in such revolution the stationary ratchet wheel 5, against which the pulley C is revolved, overcomes the tendency of the pulley to move laterally toward the ratchet wheel 5, and tends to produce a counter lateral movement of the pulley C in the opposite direction, which is sufficient to permit the pulley to be revolved against the ratchet wheel 5 to the left with the shaft B, thus lowering the car. lVhen the revolution of the shaft 13 is stopped, the loaded car, tending to independently rotate the pulley C to the left, again causes the pulley C to bind against the ratchet wheel 5, and the ratchet wheel against the disk et, and as the pawl 22 is in engagement with the teeth of the ratchet wheel 5, the parts are locked against further independent rotation to the left, and thereby the car is brought to a stop and the load sustained. The pulley block 7, engaging against the face of theratchet wheel 5, and the ratchet wheel block 6 engaging the face of the disk l, produce sufficient friction, for raising the loaded car, and in sustaining the load.

Having described the preferred mode of construction and the principles which make the device self retaining on the shaft, the operation of the car will now be set forth.

Assuming that the empty car is at the bot tom of the well and it is desired to raise it. As the counterweight (not shown) is heavier than the car 13 it will. tend to rotate the pulley C to the right independently until the tooth 27 of the pulley hub 8 locks against the tooth 28 of the collar 10 which is held against backward movement by the nut 11 which prevents further independent rotation in that direction. Then a downward pull on the hoist rope 18 on the right hand side of the hoist wheel 19 will cause the shaft B and the whole device to revolve to the right, thus raising the car. In this operation if the weight of the counterbalance is not sufficient to rotate the pulley C to the right independently then the pulley would remain stationary until the rotation of the collar 10 to the right brings its cam face 29 into engagement with the cam face 9 of the pulley hub 8 when the rotation of the collar 10 to the right forces the pulley C with its friction blocks 7 laterally against the ratchet wheel 5 which is forced laterally toward the disk a against which the ratchet wheel friction blocks 6 become engaged and revolves as a unit with the shaft to the right, thus raising the car as long as the pull is continued. Having raised the empty car to the desired point let it be assumed that the car is loaded with articles to be lowered. As the car 13 is loaded it will become heavier than the counterweight, which increased weight will rotate the pulley C to the left independently and the cam face 9 rotating against the cam face 29 of the collar 10 will cause a lateral movement of the pulley C forcing the friction blocks 7 against the ratchet wheel 5 and the friction blocks 6 against the disk l which prevents further lateral movement of the pulley C in that dii rection and the cam face 9 of the pulley hub 8 being in engagement with the cam face 29 of the collar 10 looks the pulley C against further independent rotation to the left and the device then being connected as a unit for rotation in that direction any further rotation to the left will cause the pawl 22 to engage the teeth 23 of the ratchet wheel 5 holding the device against such independent rotation which holds the car stationary and sustains the load. When it is desired to lower the loaded car from this position a downward pull on the hand rope 18 on the left hand side of the hoist wheel 19 will 7 revolution of pulley C against it tends to:

Cir

move the pulley C laterally toward the collar 10 and away from the ratchet wheel 5 sufficiently so that such continued pull on the hand rope revolves the pulley to the left and lowers the car to the desired point. As soon as the downward pull on the hand rope is stopped the device again becomes connected as above and sustains the load. Thus the device is self-retaining on the shaft. It is now desired to raise the car loaded. A downward pull on the hand rope 18 on the right hand side of the hoist wheel 19 will revolve the shaft B and the whole device as a unit to the right raising the car. Upon ceasing the downward pull the device he comes stationary and sustains the load. This is because the cam face 9 of the pulley G is engaged by the cam face 29 of the collar 10 held against backward movement by the nut 11 and as the disk 1 prevents further lateral movement of the pulley C in that direction and the weight of the car 13 tending to rotate the device to the left connects the whole device and immediately throws the pawl 22 into engagement with the teeth of the ratchet wheel holding the device stationary and sustaining the load. Thus the device is self-retaining 011 the shaft. Now upon removing the load the counterweight being heavier than the car 13 will tend to rotate the pulley C to the right independently until the tooth 27 of the pulley cam comes against the tooth 28 of the collar cam thereby pre venting further independent rotation of the pulley C. It is now desired to lower the empty car. A downward pull on the hand rope 18 on the left hand side of the hoist wheel 19 will revolve the shaft B with attached sleeve and its collar to the left, and the tooth 27 of the pulley being engaged by the tooth 28 of the collar preventing further rotation of the pulley C to the right, the pulley C must revolve with the collar to the left, thus lowering the car. In this movement the ratchet wheel 5 is held stationary by the pawl Upon ceasing the downward pull the device becomes stationary with the car. Thus the car may be raised and lowered in the well whether empty or loaded by simply pulling downward on one side or the other of the hand rope and when such pull on the hand rope is stopped the device is self-retaining on the shaft and the car is held stationary at any desired point.

Having fully described this invention what I caim as new and desire to secure by Letters Patent is- In a clutch mechanism, the combination with a shaft, of a removable sleeve having a disk thereon and fixedly attached to the shaft, a ratchet wheel loosely mounted on the fixedly attached sleeve having frictional blocks on one face adapted to engage the face of the disk, a pulley loosely mounted on the fixedly attached sleeve having friction blocks adapted to engage the face of the ratchet wheel, a beveled face 011 the pulley, a collar, having a beveled face, mounted to rotate with the shaft, the beveled face of the collar and pulley adapted to engage to move the pulley laterally and away from the collar for producing a friction between the pulley. ratchet wheel, and disk, for binding the collar, pulley, and ratchet wheel and disk together for revolution as a unit in one direction, the edges of the beveled faces of the collar and pulley being adapted to be engaged to prevent revolution of the pulley independent of the ratchet wheel in one direction, but allowing the pulley, collar, ratchet wheel and disk to rotate together with the shaft in a contrary direction, means engaging the ratchet wheel for holding it against rotation in one direction, means for revolving the shaft, and means actuated upon the rotation of the shaft for releasing the ratchet-engaging means from engagement with the ratchet wheel whereby the ratchet wheel may be freely rotated.

In testimony whereof I affix my signature, as administrator of the estate of JOHN H. Moss, deceased, in the presence of two witnesses.

CLARENCE B. MOSS, Administrator of the estate 0/" John H.

Moss, deceased. \Vitnesses E. VAUeI-IAN, J12, FRANCIS X. VELLY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

